Thomas w



(No Model.)

T. W. HOUGHIN.

INSECT P0 WDER GUN.

No. 263,337. Patented Aug. 29, 1882.

Nv PETERS. PhnbLimngmpher. wnshmglon. D. C.

NiTED STATES .PATENT OFFICE.

THOMAS W. HOUOHIN, OF MORRISANIA, NEW YORK.

INSECT-POWDER GUN.

SPECIFICATION forming part of Letters Patent No. 263,33*?, dated August29, 1882.

Application tiled April 22, 1882. (No model.)

To all whom it may concern: Be it known that I, THoMAs W. HoUoHrN ot`Morrisania, in the county of Westchester and State of New York, haveinvented certain new and useful Improvements in Insect-Powder Guns; andI do hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable lothers skilled in theart to which itappertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form part of this specification.

Figure l represents a sectional view of the plates of the thumb-piece,with the elastic diaphragm in exaggerated size, as they are being puttogether. Fig. 2 is a similar view of the completed thumb-piece inplace. Fig. 3 is a sectional view through the tube of the powdergun.Fig. 4 is a section of Fig. 3, taken on line :v x, showing the shape ofthe inner portion of the tube. Fig. 5 is a detail section, showing theconstruction as the diaphragm is being put in place. Fig. 6 is an insideview of the bottom. Fig. 7 is a section of a modication of thethumb-piece. Fig. 8 is a section of still another modification thereof.Figs. 7 and 8 show enlarged details of Figs. 7 and 8. Fig. 9 is a bottomview of the stopper. Fig. 10 is an enlarged detail section of a portionof Fig. 3, showing the construction of the stopper. Fig. 11 is a bottomview of the thumbpiece, showing the method of securing the spring. Fig.12 represents a carton which is used for lling the gun.

This invention relates to improvements in powder-guns used fordestroying insects, Ste.

The object of the invention is to render their construction stronger,make them easier to manipulate, and certain of action.

The invention consists in a powder-gun having the peculiarities ofconstruction and arrangement hereinafter set forth.

In the annexed drawings, the' letter A represents the reservoir, havingin its bottom the central iillinghole, a, with the ange a around it.

Leading into the reservoir A is the discharge-tube B. This tube,instead-.of being round and closed its entire length, as is usual, isonly closed at its exterior portion, b, its interiorportion, b', beingopen at the bottom, so that such portion b is in cross-section like aninverted U, as shown in Fig. 4. Around the extreme circumference of thebottom is made a groove,O, which I term a double channel, as it isarranged so that there shall be two eduction-passages coming under thetube B at the wall ofthe reservoir.

At the top the reservoir A has the seat a2, in which the elasticdiaphragm A is held. To secure the diaphragm in place the cloth or othermaterial for forming the same is placed over a die-ring having aninterior diameter equal to the exterior diameter of the holdingannulusE. The latter is then placed on the cloth over the ring and the dropforces both down into the ring, when the cloth is trimmed oftl allaround the top of the annulus. The reservoir is then placed under thering, and the annulus and cover are forced down through the said ringand into place in the seat a2, the die-ring heilig at the same timeremoved. The edge a3, Fig. 5, is then turned over, as shown at a4, Fig.5, and completed by pressureapplied under the shoulder a, taking theshape as shown at a", Figs. 3 and 4.

At the center of the cover is secured the thumb or center piece, F,consisting ot' exterior and interior plates, g and f. These plates arefirst made, as shown in Fig. 1, with the central hosses,f g', the latterof a size to tit Within the former. The diaphragm A is put between thetwo, having a hole to fit over the boss g. The two plates, with thediaphragm between them, are soldered together. After soldering, theplates are then stamped together, so as to bind the parts, andcorrugations of any shape are also made, so as to better hold them. Atthe'same time the tiange g3 is made so as to form a seat for the springand give an extra strength to the plate. By this soldering of the partsall necessity for riveting is avoided, and a compact and iirm union ismade.

In Fig. 7 is shown another kind of center piece. This consists of anannulus, h, having a narrow rim,h, and a plate, h2, between which plateand the rim of the annulus the diaphragm is held. The latter is rstplaced over the plate, like covering a button, and then the loose edgesare slipped through the annulus, the

IOC

plate is seated against the rim, and the diaphragm pulled tight. Themore it is pulled the tighter it is held. In Fig. Sis shown anotherform. In this the plate h2 comes on the inside of the diaphragm, and theannulus h is spun around its edge, as shown.

In all the different forms the thumb-piece is putin place before thediaphragm is put on the reservoir.

The flange g3 and the annulus h, each in its own form, make a seat inwhich the upper portion, k, of the spiral spring K is secured. Forbetter security a rib, c', may be made in the inner plate of the cover,having at its sha-rp end a hole, c2, into which the end k of the springis inserted, and it restsunder such rib.

To the bottom It of the spring is secured the stopper L, the extreme endk2 of said spring extending into the tube B,l as shown. The stopper Lhas an inverted-V-shaped groove, l, into which the flange a fits, theshape of the groove insuring atight joint. This stopper may be providedwith a handle, l. The spring K holds the stopper in place, closing thehole a., and when it is desired to fill the reservoir it is only7necessary to push on the handle l', when the stopper will be moved toone side; and when the reservoir is filled, by touching the handle, thespring will force the stopper into place.

In the use of this device, in case the tube B should become clogged, theair, being forced into it at the place where the double channel C comes,would force the accumulation out. At the same time the constant movementof the extension k2 of the spring acts as a cleaner, keeping the powderloose, and, together with the action induced through the doublechailnel, effectually preventing accumulation.

In Fig. 12 is shown a new and improved carton for containing the powder,and which can be used for filling the gun. This carton can be made ofany form, the triangular form being preferred, having atriangular-pointed end, which will allow the air to escape out ot' thegun, the filling-hole being round, and facilitate the powder enteringthe gun. The powder is put up in this receptacle, and when the carton isused for filling the gun the point is cut off at the dotted line z z.

Just above the carton in Fig. 12 is a dia- .DAAIII gram whichdemonstrates the use of the carton in lilling the gun. The letter mindicates the point of the carton, and u the circumference of theiillingwhole. Between the two are the three spaces c, through which theair escapes as the powder is poured in but Ilay no claim to this cartonin this case, reserving it as the subject of another application.

Having described my inventiomwhat I claim, and desire to secure byLetters Patent, is-

l. A powder-gun provided with the double channel or groove at its bottomand a tube having its inner portion open at the bottom,

' as set forth.

2. In a. powder-gun, a reservoir having a seat around its top, asdescribed, in combination with the-diaphragm or cover, the edge of whichis held in the seat, and a securing-an` nulus which rests upon the edgeof the diaphragm, the edge of the reservoir being turned over theannulus, as set forth.

3. The stopper L, having the groove l,'in combination with the spring Kand the reservoir A, as set forth.

4. In a powder-gun, a diaphragm, in colnbination with a center piececonsist-ing of an inner and an outer plate, the two plates beingsoldered and stamped together, whereby riveting is dispensed with, asset forth.

5. In a powder-gun, a center piece consisting of an inner and an outerplate, the two soldered and stamped together, with the diaphragtnbetween,and thenner plate provided with a 'seat for the spring, as setforth.

6. 1n a powder-gun, the discharge-tube, in combination with the springhaving an extension which is located in the inner portion of said tube,as set forth.

7. In a powder-gun, the reservoir and the diaphragm or cover, incombination with the thumb-piece in which the diaphragm is secured, andwhich is provided with a seat, and the spring having its upper endsecured in the seat, as set forth.

In testimony that I claim the foregoing as myown I affix mysignature inpresence of two witnesses.

THOS. NV. HOUCI'IIN.

Witnesses:

WM. M. SMITH, JNo. BoWLEs.

